<template>
	<view>
		<view class="search-box">
		  <uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
		</view>
		<view class="sugg-list" v-if="searchResults.length !== 0">
		  <view class="sugg-item" v-for="(item, i) in searchResults" :key="i" @click="gotoDetail(item.goods_id)">
		    <view class="goods-name">{{item.goods_name}}</view>
		    <uni-icons type="arrowright" size="16"></uni-icons>
		  </view>
		</view>
		<view class="history-box" v-else>
		  <view class="history-title">
		    <text>搜索历史</text>
		    <uni-icons type="trash" size="17" @click="clean"></uni-icons>
		  </view>
		  <view class="history-list">
		    <uni-tag :text="item" v-for="(item, i) in historyList" :key="i" @click="gotoGoodsList(item)"></uni-tag>
		  </view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
		  return {
		    timer: null,
		    kw: '',
			searchResults: [],
			historyList: []
		  };
		},
		onLoad() {
		  this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]')
		},
		methods: {
		input(e) {
		  clearTimeout(this.timer)
		  this.timer = setTimeout(() => {
			  this.kw = e
			  this.getSearchList()
		  }, 500)
		},
		async getSearchList() {
		  if (this.kw === '') {
		    this.searchResults = []
		    return
		  }
		  const { data: res } = await uni.$http.get('/api/public/v1/goods/qsearch', { query: this.kw })
		  if (res.meta.status !== 200) return uni.$showMsg()
		  this.searchResults = res.message
		  this.saveSearchHistory()
		},
		gotoDetail(item) {
		  uni.navigateTo({
		    url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
		  })
		},
		saveSearchHistory(){
			//this.historyList.unshift(this.kw)
			const set = new Set(this.historyList)
			set.delete(this.kw)
			set.add(this.kw)
			this.historyList = [...new Set([this.kw,...this.historyList])]
			uni.setStorageSync('kw', JSON.stringify(this.historyList))
		},
		clean() {
			this.historyList= []
			uni.setStorageSync('kw','[]')
		},
		gotoGoodsList(kw) {
		  uni.navigateTo({
		    url: '/subpkg/goods_list/goods_list?query=' + kw
		  })
		}
	},
	computed: {
	  historys() {
	     //return [...this.historyList].reverse()
	  }
	}
}
</script>

<style lang="scss">
.search-box {
  position: sticky;
  top: 0;
  z-index: 999;
}
.sugg-list {
  padding: 0 5px;

  .sugg-item {
    font-size: 12px;
    padding: 13px 0;
    border-bottom: 1px solid #efefef;
    display: flex;
    align-items: center;
    justify-content: space-between;

    .goods-name {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-right: 3px;
    }
  }
}
.history-box {
  padding: 0 5px;

  .history-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 40px;
    font-size: 13px;
    border-bottom: 1px solid #efefef;
  }

  .history-list {
    display: flex;
    flex-wrap: wrap;

    .uni-tag {
      margin-top: 5px;
      margin-right: 5px;
    }
  }
}
</style>
